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Feb 10, 2013 6:00pm PST
,200 miles of earth's surface but then cruise safely back into space. >> reporter: nasa says it is the largest to fly this close to earth since the agency started keeping track. while the experts say it won't hit the earth, 130,000 metric tons of flying mass still makes people a little nervous. >> an impact by an object the size that will pass next week happens about every 1,200 years. >> reporter: to understand the true impact of asteroids striking earth, you have to travel back 66 million years. that's the time frame researchers at uc berkeley have newly pinpointed as the demise of the dinosaurs. >> the dinosaurs we think are wiped out around 66.043 million years ago. that's to within about 320,000 years. >> reporter: in a paper published this week, the group noted along with volcanos, the final nail in the dinosaur coffin likely fell from space. >> one is that an asteroid slammed into the earth. that wiped out the dinosaurs and a lot of life on earth. >> reporter: next friday's asteroid path isn't expected to be quite as spectacular but oakland space center will offer the
Feb 16, 2013 6:00pm PST
here on earth. nasa has reportedly found most of the ones that could destroy our planet but as far as the ones that are smaller and destroy cities and wipe out regions, as far as those are concerned 99% are a mystery to us, we only now about 1% of them. the foundation believes it's so-called sentinel telescope can discover more asteroids in its first month of service in 2018 than all of our earth-based telescopes have been able to do over the past 30 years. scientists believe they could be deflected away from earth if we have several years warning. we need years, not months. you think about the 150-foot asteroid that passed close to earth yesterday. that was only discovered last year, no one enough time to done any good. that's what the b-612 foundation is trying to change. on a side note about the fireball seen streaking over the west coast including the bay area last night around 8:00, today the american meteor society says that that meteor was not what we would consider to be a major event. that these things happen every night around the world just not always over densely popula
Feb 15, 2013 6:00pm PST
in oakland. >> reporter: you're looking at video taken by nasa showing a 150-foot asteroid as seen from australia this morning coming closer to earth than any rock its size. >> it sounded like a safeway, a supermarket, or an olympic sized swimming pool in size. the mass is 130,000 metric tons, which is equivalent to 60,000 suvs, so, you know, it's a big piece of rock. >> reporter: but the much anticipated asteroid is getting overshadowed by a smaller meteor that actually made its way to earth. these incredible images show the ten ton meteor floating over russia smashing windows and injuring hundreds. but experts say the cosmic rock completely unrelated to the da-14 asteroid. >> it's actually been a double whammy day. a lot of interesting things going on. but it is just a coincidence. it's not marking the beginning of a rain of asteroids coming at us. >> i'm thankful for that. >> reporter: all the cosmic activity catching the attention of glenn rivera who recently had a close encounter with a meteor ite when one hit his neighbor's roof on his birthday in october. he still has a chunk of
Feb 14, 2013 6:00pm PST
:25. beginning at 11:00 a.m. nasa will broadcast live images of the asteroid online as it sweeps by. >> it doesn't look that big when you look at it like that. >> let's turn things over to jeff live from at&t park. instead of love being in the air, love is in the field. >> yes, it is. i know a lot of you at home are just tuning in right now. we're actually in centerfield at at&t park. they have lent the field to an incredible organization. back behind me they're still preparing for hearst after dark which starts at 7:30. i was out on the dance floor earlier. i think everybody ran the other way. a huge organization coming out for tonight's hearst after dark to raise a lot of money for the greater good here in the community. stephanie bray with san francisco general hospital foundation joins us. stephanie, this is something that you guys at the hospital are working towards all year long. >> yes, absolutely. the work that goes on at the hospital we try to share as much as we can. and get as many people involved. and there are a lot of people involved in putting this event together. >> so this event
Search Results 0 to 3 of about 4